Activity 1

Question : Comment Figure 4 globally (make the parallel between the left images and the graph on the right

Which statements are true? Explain why or why not.1 Because the DNA double helix is only 2 nm wide—well below the limit of resolution of the light microscope—it is impossible to see chromosomes in living cells withoutspecial stains.2 A fluorescent molecule, having absorbed a singlephoton of light at one wavelength, always emits it at a lon­ger wavelength.

Can you please help me with question( 9) 5. In the film, Dr. Jablonski explains that melanin, located in the top layer of human skin, absorbs UV radiation, protecting cells from the damaging effects of UV. Genetics determines the type of melanin (i.e., brown/black eumelanin or red/brown pheomelanin) and the amount of melanin present in an individual’s cells.  Based on this information, write a hypothesis for where in the world you would expect to find human populations with darker or lighter skin pigmentation (i.e., different amounts of melanin).     9. Do these data support your hypothesis from Question 5? Justify your answer.

Question 1: Answer all practice question parts Label the leading and lagging strands below: 3' 5' 5° 3' Label the coding strand and template strand below: A protein is 285 amino acids long. The cell needs 10,000 copies of this protein. Based on this information please answer the following questions. How many ATPS will be needed to make this protein? How many moles of glucose will be needed to make this protein?

question 6,7 are related to question 5 diagram.  Please answer 6&7 both please

QUESTION 1: Several factors (e.g., time and voltage) affect migration of DNA fragments through the agarose gel. Briefly explain how each of these factors affects DNA migration.

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Question 6. Explain in very detailed information, the most common signs and symptoms of PCOS syndrome. (An explanation in detail at more than 750 words).

Question 3a and 3c.

Question 6. If cells are infected with a vesicular stomatitis virus (VSV) strain in which a viral gene (VSVG) is fused to the green fluorescent protein gene, when the chimeric protein is synthesized, what compartments will it visit and in what order before until it leaves the cell?

Question: Some states are setting up archives of DNA profiles for all convicted criminals. Should this be extended to all citizens and become part of their basic medical records? Why or why not?

QUESTION 2: What is the charge of a DNA molecule? Which aspect of its structure is responsible for this charge (Be Specific)? Explain how this charge relates to the movement of DNA when in the gel box?.

Question attached

Remaining Time: 40 minutes, 15 seconds. v Question Completion Status: A Moving to another question will save this response. Question 35 "If a DNA molecule has 12% thymine, how much guanine will it have?" 12% 24% 38% 76% A Moving to another question will save this response. MAR

Question: The first successful drug trial to reduce concentrations of huntingtin in the brain used single-stranded DNA molecules. Suggest and explain how this drug could cause a reduction in the concentration of the protein huntingtin.

Question 4. What is the probability that a restriction enzyme will cut DNA if the recognition sequence for the enzyme is 5'-GGATCC-3'? a) Assuming that the four bases are equally likely to be found in a DNA molecule. O (1/4)6 O (1/4)4 O (1/6)4 O 1 in 6 O (1/6)6